Problem Statement

Takahashi, who is $A$ years old, is riding a Ferris wheel.

It costs $B$ yen ($B$ is an even number) to ride the Ferris wheel if you are $13$ years old or older, but children between $6$ and $12$ years old (inclusive) can ride it for half the cost, and children who are $5$ years old or younger are free of charge. (Yen is the currency of Japan.)

Find the cost of the Ferris wheel for Takahashi.

Constraints

• $0 ≤ A ≤ 100$
• $2 ≤ B ≤ 1000$
• $B$ is an even number.

Input

Input is given from Standard Input in the following format:

A B

Output

Print the cost of the Ferris wheel for Takahashi.